Astronomy, Exobiology, & Cosmology

amateur astronomy, astrophysics, exoscience

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  1. paddoboy

    Pluto Encounter:

    paddoboy, May 11, 2015 ... 2 3
    Replies:
    53
    Views:
    4,458
    CEngelbrecht
    Dec 6, 2015
  2. flameofanor5

    Opposition to space exploration

    flameofanor5, Sep 24, 2009 ... 2 3
    Replies:
    53
    Views:
    7,836
    Doreen
    Sep 30, 2009
  3. draqon

    I am a contestant in N-Prize competition

    draqon, Nov 23, 2008 ... 2 3
    Replies:
    53
    Views:
    2,495
    phlogistician
    Nov 24, 2008
  4. Rick

    Space elevators

    Rick, Dec 1, 2001 ... 2 3
    Replies:
    53
    Views:
    5,465
    eburacum45
    May 21, 2004
  5. expletives deleted

    Distinguishing Cosmological Expansion frame from SR frame.

    expletives deleted, Apr 17, 2016 ... 2 3
    Replies:
    54
    Views:
    2,022
    Xelasnave.1947
    Jul 7, 2016
  6. timojin

    Black hole

    timojin, May 27, 2016 ... 2 3
    Replies:
    54
    Views:
    1,725
    paddoboy
    May 31, 2016
  7. kaneda

    Matter and energy

    kaneda, Sep 1, 2008 ... 2 3
    Replies:
    54
    Views:
    3,228
    paddoboy
    Jun 2, 2014
  8. paddoboy

    china's moon rover:

    paddoboy, Nov 27, 2013 ... 2 3
    Replies:
    54
    Views:
    3,190
    ElectricFetus
    Jan 27, 2014
  9. Cyperium

    Question about observing the past (WMAP)

    Cyperium, Jul 10, 2012 ... 2 3
    Replies:
    54
    Views:
    5,412
    Cyperium
    Jul 29, 2012
  10. quantum_wave

    QWC's niche

    quantum_wave, Oct 20, 2008 ... 2 3
    Replies:
    54
    Views:
    5,153
    quantum_wave
    Nov 25, 2008
  11. kmguru

    Actual Age of the Universe

    kmguru, Jun 9, 2007 ... 2 3
    Replies:
    54
    Views:
    5,924
    wilgory
    Jun 26, 2007
  12. EmptyForceOfChi

    Black holes, the other side?

    EmptyForceOfChi, Nov 28, 2005 ... 2 3
    Replies:
    54
    Views:
    2,898
    gregory85
    Jan 12, 2006
  13. WildBlueYonder

    Rare Earth

    WildBlueYonder, Nov 12, 2004 ... 2 3
    Replies:
    54
    Views:
    3,421
    mercurio
    Jan 23, 2005
  14. Knowledge

    Time Travel?

    Knowledge, Aug 26, 2004 ... 2 3
    Replies:
    54
    Views:
    4,042
    jkimbo
    Dec 9, 2004
  15. Don Hakman

    life on Mars

    Don Hakman, Jan 28, 2004 ... 2 3
    Replies:
    54
    Views:
    2,780
    chunkylover58
    Feb 5, 2004
  16. Lady

    Black circle around moon?

    Lady, Oct 29, 2002 ... 2 3
    Replies:
    54
    Views:
    4,957
    Boris2
    Nov 11, 2002
  17. The God
    Locked

    The God has misconceptions on Time Dilation

    The God, Jun 4, 2016 ... 2 3
    Replies:
    55
    Views:
    2,339
    rpenner
    Jun 11, 2016
  18. paddoboy

    Why Einstein will never be wrong

    paddoboy, Jan 14, 2014 ... 2 3
    Replies:
    55
    Views:
    4,138
    paddoboy
    Feb 3, 2014
  19. Gustav

    NASA: Evidence Of Water Found On Moon

    Gustav, Nov 13, 2009 ... 2 3
    Replies:
    55
    Views:
    2,987
    D H
    Dec 2, 2009
  20. domesticated om

    Moon Colonization

    domesticated om, Jul 20, 2009 ... 2 3
    Replies:
    55
    Views:
    3,068
    ripleofdeath
    Aug 2, 2009
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